10010001001

10010001001 is an 11-bit binary numeral. In decimal, it equals 1161, and in hexadecimal it corresponds to 0x489. As a binary value, it represents the bit pattern with ones at positions 10, 7, 3, and 0, which sum to 2^10 + 2^7 + 2^3 + 2^0.

Its interpretation depends on context. When treated as an unsigned integer, 10010001001 simply encodes the value 1161. If viewed as a set of flags, the four 1 bits indicate four active features or signals, while the zero bits indicate features that are inactive. In fixed-width encodings, an 11-bit value would typically be stored within a larger word or padded with leading zeros to fit a standard width such as 12, 16, or 32 bits.

11-bit values are less common in modern mainstream architectures but can appear in specialized instruction formats, data interchange schemes, or historical systems. They may form part of memory addresses, immediate fields in instructions, or compact data fields where space is at a premium. When such a value is embedded in a broader data structure, endianness and the surrounding protocol determine how the bits are interpreted.

In summary, 10010001001 is an 11-bit binary string with a decimal value of 1161 (hex 0x489), whose meaning is determined by the computational context in which it is used. See also binary numeral system, decimal, and hexadecimal.